Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va trien co snippets" » "va truyen co snippets", "va thiet co snippets", "va tuyen co snippets", "va trien cho snippets", "va trien con snippets", "va tren co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("va trien co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va trien co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va trien co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va trien co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.